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    Can't Home Z with a Z Probe installed

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    • dc42undefined
      dc42 administrators
      last edited by

      G30 needs X and Y to be homed first, but not Z.

      Duet WiFi hardware designer and firmware engineer
      Please do not ask me for Duet support via PM or email, use the forum
      http://www.escher3d.com, https://miscsolutions.wordpress.com

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      • Vaeiundefined
        Vaei
        last edited by Vaei

        X and Y are homed yet the error still occurs. What does it need?

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        • Vaeiundefined
          Vaei
          last edited by

          This is my config.json for reprapfirmware configurator if that helps

          https://drive.google.com/open?id=12VJ0j6iLhLLwgAJG4DQbLxDPtQtFVlSx

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          • Phaedruxundefined
            Phaedrux Moderator
            last edited by

            Can you post your config.g and your homing files?

            Z-Bot CoreXY Build | Thingiverse Profile

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            • Vaeiundefined
              Vaei
              last edited by

              @phaedrux said in Can't Home Z with a Z Probe installed:

              Can you post your config.g and your homing files?

              Sure

              https://drive.google.com/open?id=15q-ReiRuzfv0u6V4hmQRy1bwbsqbV75e

              Phaedruxundefined 1 Reply Last reply Reply Quote 0
              • Phaedruxundefined
                Phaedrux Moderator @Vaei
                last edited by

                @vaei unable to access your drive

                Z-Bot CoreXY Build | Thingiverse Profile

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                • dc42undefined
                  dc42 administrators @Phaedrux
                  last edited by

                  @phaedrux said in Can't Home Z with a Z Probe installed:

                  @vaei unable to access your drive

                  Same here.

                  Duet WiFi hardware designer and firmware engineer
                  Please do not ask me for Duet support via PM or email, use the forum
                  http://www.escher3d.com, https://miscsolutions.wordpress.com

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                  • Vaeiundefined
                    Vaei
                    last edited by T3P3Tony

                    That's odd somehow the public sharing turned off

                    <edited to remove the link>!

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                    • Phaedruxundefined
                      Phaedrux Moderator @Vaei
                      last edited by

                      @vaei I don't think you meant to link that.

                      Z-Bot CoreXY Build | Thingiverse Profile

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                      • Phaedruxundefined
                        Phaedrux Moderator
                        last edited by

                        I'm not sure if it matters, but you have your M574 command set to use a Z endstop currently.

                        Try changing that to M574 Z1 S2 ; Use zprobe and home to Z Min.

                        I say it may not matter because in the next few lines you specify the z probe in M558.

                        Your Homeall.g looks ok.

                        Your Homez.g won't work unless XY and already homed or you add S2 to your G1 move to get the probe in position.

                        Z-Bot CoreXY Build | Thingiverse Profile

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                        • Vaeiundefined
                          Vaei @Phaedrux
                          last edited by

                          @phaedrux said in Can't Home Z with a Z Probe installed:

                          I'm not sure if it matters, but you have your M574 command set to use a Z endstop currently.

                          Try changing that to M574 Z1 S2 ; Use zprobe and home to Z Min.

                          I say it may not matter because in the next few lines you specify the z probe in M558.

                          Your Homeall.g looks ok.

                          Your Homez.g won't work unless XY and already homed or you add S2 to your G1 move to get the probe in position.

                          Thanks for the help 🙂 Unfortunately the same thing occurs.

                          By the way, does the reprap configurator have a setting for Mode 5? None of them have their mode numbers shown and it's 5 that works for mine. The others don't see it trigger. I keep having to manually set it after the fact.

                          I thought I uploaded the config.zip - if so what was in it that I shouldn't have linked it? Wifi p/w?

                          Well, I'm more or less at a loss.

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                          • T3P3Tonyundefined
                            T3P3Tony administrators @Vaei
                            last edited by

                            @vaei said in Can't Home Z with a Z Probe installed:

                            I thought I uploaded the config.zip - if so what was in it that I shouldn't have linked it? Wifi p/w?

                            You linked your timesheet spreadsheet which is why i removed the link!

                            the older link works for your config.zip

                            Try adding an S2 after the movement commands in your homeZ and home all.g:

                            G1 X15 Y73.5 F6000 S2

                            You have the EZABL setup as probe type 1, is that correct ( I don't know how it works - capacitive?)? You say it triggers correctly so I will assume it has an analog output, actually i just saw this:

                            @vaei said in Can't Home Z with a Z Probe installed:

                            By the way, does the reprap configurator have a setting for Mode 5? None of them have their mode numbers shown and it's 5 that works for mine.

                            Your sharedconfig.g has the mode set to 1 in M558:

                            M558 P1 H5 F120 T6000

                            the RepRapFirmware configurator lets you choose the type of Z probe:
                            0_1530635754385_2a481633-40f0-49d9-ae9c-3896334eb3a9-image.png

                            With it set to "switch" I get "M558 P0.." which is wrong it should be P4 or P5. Thanks for finding this bug - I will report it to @chrishamm

                            www.duet3d.com

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                            • Vaeiundefined
                              Vaei
                              last edited by

                              I got it triggering correctly with Mode 1 but I need to set I1 with M558 also for it to work.

                              Unfortunately I still can't home, even after the changes adding S2.

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                              • Phaedruxundefined
                                Phaedrux Moderator
                                last edited by

                                What do your config and homing files look like now?

                                Z-Bot CoreXY Build | Thingiverse Profile

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